Yesterday, the Cubs and Mets played to a 1-1 draw at Wrigley when the game got suspended in the 10th due to torrential rain. (They resume in about 20 minutes.) My department bought us rooftop tickets, so we got to see most of the game between the waves of thunderstorms that preceded and interrupted it:
I got supremely lucky: the first wave of thunderstorms hit just as I was getting on the bus to go to the park, finished its deluge just as I got off the bus, and the second wave hit while I was on the bus going back home. So I caught the tail end of the second wave, but only a few drops between the bus and my house.
I'll update this post with the final score whenever they have one.
Update: The Cubs won, 2-1 in the 11th.
It's official: until noon today, I hadn't left the state of Illinois for 215 days, 20 hours, and 15 minutes. Then I crossed into Wisconsin and stayed about a hundred meters over the border for a few hours. The previous record was 214 days and change, set when I was, oh, 11.
Today is also the 30th anniversary of the day I arrived at university. Tomorrow, I'll have art, unless I lose my nerve.
Also, it was really, really warm today. But that wasn't a record, just a bad day to spend outside.
The weather today inclined me to spend a lot of time outside in my neighborhood, except for the part that I had to spend inside working on the new Apollo Chorus website. (We're launching this week!)
Regular posting will probably resume tomorrow.
The New York City subway, with its passive air exchange system and tunnels too small for active ventilation or air conditioning, have gotten excessively hot this summer:
On Thursday, temperatures inside at least one of the busiest stations reached 40°C—nearly 11°C warmer than the high in Central Park.
The Regional Plan Association, an urban planning think tank for the greater metropolitan area, took a thermometer around the system’s 16 busiest stations, plus a few more for good measure, and shared the data with CityLab. A platform at Union Square Station had the 40°C reading at 1 p.m., which was the hottest they found, although Brooklyn Bridge-City Hall and Columbus Circle weren’t far off at 39°C and 38½°C, at around 10 and 11 a.m., respectively. Twelve out of the 16 busiest stops boiled at or over the 32°C mark in the late morning and early afternoon.
One might think that subway stations would offer crisp respite to sweaty New Yorkers, being underground and all. But you’d be wrong. Heat doesn’t only “rise”—it just diffuses to cooler areas, which can include below-ground spaces. Plus, only a few of the city’s 472 stations are equipped with air conditioning; most rely on a passive ventilation system better known for their Marilyn Monroe moments above ground. This system was built in the days before AC, and the MTA says it’s not possible to squeeze the station-cooling machinery that other metro systems have inside New York’s narrow tunnels. Meanwhile, the units that cool passengers inside cars actually shed heat into the stations as trains pass through.
That onboard air-conditioning can fail, too. The MTA has also seen a rising number of complaints about overheated cars in recent years. In today’s issue of Signal Problems, his indispensable newsletter focused on subway accountability, the journalist Aaron Gordon reports that “about two percent of all subway cars in service on any given day might not have working A/C,” according to the MTA. That means at least 100 cars are roasting passengers on any given day this summer.
This problem also bedevils the London Underground.
Meanwhile, here in Chicago, we're having our 73rd day this year above 27°C, just 10 short of the record. Given the normal number of temperatures that warm between now and October, I think we'll probably set a new one.
And the sunlight here looks eerily orange and hazy today, because of climate change-driven wildfires out west.
Welcome to the future.
About 50 million years ago, when mammals had just started taking over the planet, atmospheric CO2 levels were about 1000 ppm. And wow, was it hot here:
[A]round 50 million years ago there were crocodiles, palm trees, and sand tiger sharks in the Arctic Circle. On the other side of the blue-green orb, in waters that today would surround Antarctica, sea-surface temperatures might have topped an unthinkable 86degrees Fahrenheit, with near-tropical forests on Antarctica itself. There were perhaps even sprawling, febrile dead zones spanning the tropics, too hot even for animal or plant life of any sort.
[U]nder this past regime of high CO2, in the ancient U.K., Germany, and New Zealand, life endured mean annual temperatures of 23–29°C or 10–15°C warmer than modern times.
And yet, there is a seeming disconnect, between traditional projections for future warming—like those made by the International Panel on Climate Change (IPCC), which predicts around 4°C of warming by the end of the century under a business-as-usual emissions scenario (still frightening) and sea-level rise measured in mere inches (still frightening)—and the scarcely recognizable Earths buried in the rocks and created under similar CO2 regimes, like those that Eberle unearths.
One obvious way to reconcile this disparity is by noticing that the changes to the ancient earth took place over hundreds-of-thousands to millions of years and (IPCC graphs notwithstanding) that time won’t stop at the end of the 21st century. The changes that we’ve already set in motion, unless we act rapidly to countervail them, will similarly take millennia to fully unfold. The last time CO2 was at 400 ppm (as it is today) was 3 million years ago during the Pliocene epoch, when sea levels were perhaps 24 m higher than today. Clearly the climate is not yet at equilibrium for a 400-ppm world.
Good thing we've stopped pumping CO2 into the atmosphere! Oh, wait...
It's the hottest weekend of the year so far. We beat the high temperature on June 30th by half a degree (35.6°C v 36.1°C) yesterday, and so far today we've hovered around 32°C for the past four hours. So, naturally, I walked about 5 km earlier today to check out some open houses.
I'm ready for fall. Just as soon as I take my second shower of the day...
Temperatures in southern Portugal and Spain have reached 45°C as dust from the Sahara turns skies orange:
In the latest phase of a summer of extreme weather that has brought blistering heat to Britain, drought to the Netherlands and deadly wildfires to Greece, the heatwave affecting parts of southern Europe has reached a new intensity this weekend. According to IPMA, the Portuguese weather agency, about a third of the country’s meteorological stations broke temperature records on Saturday. The highest was 46.4°C in Alvega, 120km from Lisbon.
In the southern Algarve, more than 700 firefighters battled a forest fire that had spread across 1,000 hectares near the town of Monchique; in the capital, Lisbon, the usually busy terrace cafes of the Chiado district were quiet as people stayed indoors. And in Amareleja, a sleepy town as famous for its hot summers as for its full-bodied red wines, the large outdoor thermometer at the Farmácia Portugal read 44.5°C just after midday. Petrol station attendant Joaquim, however, was not fazed: the past couple of days had been abnormal, he said, but locals were “used to the heat and know how to adapt”.
The high temperatures in Portugal and Spain are caused by a plume of warm air from the Sahara, which yesterday turned the sky an eerie orange in places, including above Amareleja.
Meanwhile, the best President we have right now is trying to tank fuel-economy standards for cars.
Sediment under Lake Chichancanab on the Yucatan Peninsula has offered scientists a clearer view of what happened to the Mayan civilization:
Scientists have several theories about why the collapse happened, including deforestation, overpopulation and extreme drought. New research, published in Science Thursday, focuses on the drought and suggests, for the first time, how extreme it was.
[S]cientists found a 50 percent decrease in annual precipitation over more than 100 years, from 800 to 1,000 A.D. At times, the study shows, the decrease was as much as 70 percent.
The drought was previously known, but this study is the first to quantify the rainfall, relative humidity and evaporation at that time. It's also the first to combine multiple elemental analyses and modeling to determine the climate record during the Mayan civilization demise.
Many theories about the drought triggers exist, but there is no smoking gun some 1,000 years later. The drought coincides with the beginning of the Medieval Warm Period, thought to have been caused by a decrease in volcanic ash in the atmosphere and an increase in solar activity. Previous studies have shown that the Mayans’ deforestation may have also contributed. Deforestation tends to decrease the amount of moisture and destabilize the soil. Additional theories for the cause of the drought include changes to the atmospheric circulation and decline in tropical cyclone frequency, Evans said.
What this research has to do with the early 21st Century I'll leave as an exercise for the reader.
When I get home tonight, I'll need to read these (and so should you):
And now, I'm off to the Art Institute.
It's 25°C and partly cloudy today, so I'm spending as much as possible outside. Regular posting will resume when I'm once again trapped inside by some unfortunate event, like work.